An instrument for determining the weight or pressure of the atmosphere, and hence for judging of the probable changes of weather, or for ascertaining the height of any ascent
An instrument used to measure atmospheric pressure Two examples are the aneroid barometer and the mercurial barometer
A meteorological instrument that measures atmospheric pressure Used to predict weather changes
An instrument, often using a column of mercury, for measuring atmospheric pressure Traditionally a falling barometer measurement meant an approaching storm